Expansion water tank for gas wall-hanging stove

Abstract

The utility model discloses an expansion water tank for a gas wall-hanging stove, which relates to the technical field of gas wall-hanging stoves and comprises a gas tank. A sealing plate is arranged at the opening position of the front end of the air box, a water storage shell is fixed to the surface side of the sealing plate, strip-shaped openings communicating with the interior of the water storage shell are formed in the four side faces of the air box in a penetrating mode, expansion films are fixed to the interiors of the strip-shaped openings, and an I-shaped assembly strip is arranged on the rear side wall located outside the air box. Locking holes are formed in the ends, exceeding the left side and the right side of the water storage shell, of the I-shaped assembly strip, and shielding plates are arranged on the end faces, located on the left side and the right side of the I-shaped assembly strip, of the I-shaped assembly strip. According to the utility model, the I-shaped assembly strip and the gas tank are detachably assembled and connected, so that the I-shaped assembly strip and the gas tank are convenient to disassemble and assemble, and meanwhile, the shielding plate and the I-shaped assembly strip are assembled and used, so that the bolt can be effectively prevented from slipping in the locking hole and falling off.

Description

Technical Field

[0001] This utility model belongs to the technical field of gas wall-hung boilers, and in particular relates to an expansion tank for gas wall-hung boilers. Background Technology

[0002] A wall-hung boiler is a high-efficiency household gas appliance that integrates heating and domestic hot water supply functions. It is usually installed on the wall to save space. Gas wall-hung boilers have powerful central heating functions that can meet the heating needs of multiple rooms. In addition, they can also provide hot water for bathing. The heat preservation function of gas wall-hung boilers is affected by local climate conditions and the insulation of the building. In order to ensure the safe operation of the wall-hung boiler, a corresponding expansion tank is installed inside. The expansion tank accommodates the expansion of the system water in the heating system, and also plays a role in pressure stabilization and water replenishment to the system.

[0003] However, most existing expansion tanks are installed in gas-fired wall-hung boilers via external structures. These external structures are typically welded to the expansion tank, making disassembly and reassembly difficult. Furthermore, most use bolts to fix the external structure to the boiler, which lack a sealing mechanism, leading to bolt slippage and easy dislodgement. Therefore, we provide an expansion tank for gas-fired wall-hung boilers to solve these problems. Utility Model Content

[0004] The purpose of this utility model is to provide an expansion tank for a gas wall-hung boiler. The expansion tank is detachably connected to the gas box via an I-shaped assembly strip, which facilitates the assembly and disassembly of the two. At the same time, the assembly and use of the shielding plate and the I-shaped assembly strip can effectively prevent the bolts from slipping and falling off in the locking holes.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to an expansion tank for a gas wall-hung boiler, comprising a gas tank; a sealing plate is provided at the opening position at the front end of the gas tank, and a water storage shell is fixed to the surface of the sealing plate; all four sides of the gas tank have through-cut strip openings that communicate with the interior of the water storage shell, and an expansion film is fixed inside each of the strip openings; an I-shaped assembly strip is provided on the rear side wall outside the gas tank, and locking holes are provided at the ends of the I-shaped assembly strips that extend beyond the left and right sides of the water storage shell; and shielding plates are provided on the end faces of the I-shaped assembly strips on the left and right sides.

[0007] The present invention is further configured such that mounting rods are fixed at the four opposite corners inside the gas box, and the four corners of the sealing plate are screwed to the mounting rods by bolts.

[0008] The present invention is further provided that a sealing gasket is fixed on the inner wall of the air box in a ring shape along the inner side, and the sealing gasket abuts against the inner wall of the sealing plate.

[0009] The present invention is further configured such that a pipe connecting to the interior of the water storage shell is fixed at the bottom of the water storage shell, and an air inflation pipe connecting to the interior of the air box is fixed on the front side wall of the sealing plate.

[0010] The present invention is further configured such that a connecting cylinder is fixed in the middle of the rear side wall of the gas box, a concave conical ring plate is fixed in the side wall of the sealing plate, and the conical ring plate abuts against the connecting cylinder, a sealing ring is sleeved on the surface of the connecting cylinder and abuts against the conical ring plate, and an opening is provided on the side wall of the conical ring plate at the position corresponding to the connecting cylinder.

[0011] The present invention is further configured such that a screw rod passing through the connecting cylinder and the through-hole is fixed on the front end face of the I-shaped assembly strip, and a locking nut is screwed on the screw rod located in front of the conical ring plate.

[0012] The present invention is further configured such that positioning holes are provided on the side walls of the I-shaped assembly strips located above and below the connecting cylinder, and two positioning rods are fixed on the rear side wall of the air box, which are respectively inserted into the positioning holes.

[0013] The present invention is further configured such that rotating blocks are fixed at the upper and lower parts of the end face of the I-shaped assembly strip, and rotating rods that are rotatably connected to the rotating blocks are fixed at the upper and lower ends of the shielding plate. The rotating rods are used in conjunction with the rotating blocks through torsion springs.

[0014] This utility model has the following beneficial effects:

[0015] 1. Disconnect the screw at the front end of the I-shaped assembly strip from the sealing plate. This controls the I-shaped assembly strip to drive the screw to be removed from the through-hole and the connecting cylinder, thus facilitating the disassembly and assembly of the I-shaped assembly strip on the air box.

[0016] 2. Align the I-shaped assembly strip with the corresponding position, and pass the bolt through the locking hole and bolt it into the wall-hung boiler. Then loosen the shielding plate, and the shielding plate will block the locking hole, which can effectively prevent the bolt from slipping and falling off in the locking hole. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a structural diagram of the closed plate in this utility model.

[0019] Figure 3 This is a front view of the gas box in this utility model.

[0020] Figure 4This is an exploded view of the I-shaped assembly strip in this utility model.

[0021] Figure 5 This is a rear view of the gas box structure of this utility model.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1-Air box, 101-Connecting cylinder, 102-Sealing ring, 103-Strip opening, 104-Expansion film, 105-Sealing gasket, 106-Assembly rod, 107-Positioning rod, 2-Sealing plate, 201-Conical ring plate, 202-Inflation pipe, 203-Through opening, 3-I-shaped assembly strip, 301-Locking hole, 302-Rotating block, 303-Screw, 304-Positioning port, 305-Locking nut, 306-Shielding plate, 307-Rotating rod, 4-Water storage shell, 401-Connecting pipe. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1

[0026] Please see Figure 1 and Figure 5 This utility model is an expansion tank for a gas wall-hung boiler. The detachable assembly connection between the I-shaped assembly strip 3 and the gas box 1 facilitates the disassembly and assembly of the two. At the same time, the assembly and use of the shielding plate 306 and the I-shaped assembly strip 3 can effectively prevent the bolts from slipping and falling off in the locking hole 301.

[0027] Specifically, the air box 1 has a sealing plate 2 at the opening at the front end of the air box 1. A water storage shell 4 is fixed to the surface of the sealing plate 2. Each of the four sides of the air box 1 has a strip-shaped opening 103 that communicates with the inside of the water storage shell 4. An expansion film 104 is fixed inside each of the strip-shaped openings 103. An I-shaped assembly strip 3 is provided on the rear side wall outside the air box 1. Locking holes 301 are provided at the ends of the I-shaped assembly strip 3 that extend beyond the left and right sides of the water storage shell 4. A shielding plate 306 is provided on the end face of the I-shaped assembly strip 3 on the left and right sides. A pipe 401 that communicates with the inside of the water storage shell 4 is fixed to the bottom of the water storage shell 4. An inflation pipe 202 that communicates with the inside of the air box 1 is fixed to the front side wall of the sealing plate 2.

[0028] The operation process of this embodiment is as follows: When the entire device is installed in the gas wall-hung boiler using the above-mentioned structure, the I-shaped assembly strip 3 is aligned with the corresponding position, and the bolt is passed through the locking hole 301 and bolted into the wall-hung boiler. Then, the shielding plate 306 is loosened, and the shielding plate 306 blocks the locking hole 301, which can effectively prevent the bolt from slipping and falling off in the locking hole 301. At the same time, through the detachable assembly connection between the I-shaped assembly strip 3 and the gas box 1 and the sealing plate 2, the screw 303 at the front end of the I-shaped assembly strip 3 is disconnected from the sealing plate 2. This controls the I-shaped assembly strip 3 to drive the screw 303 to be taken out from the inside of the through 203 and the connecting cylinder 101, thereby facilitating the disassembly and assembly of the I-shaped assembly strip 3 on the gas box 1.

[0029] Furthermore, positioning holes 304 are provided on the side walls of the I-shaped assembly strips 3 located above and below the connecting cylinder 101. Two positioning rods 107 are fixed on the rear side wall of the air box 1, which are respectively inserted into the positioning holes 304. When the I-shaped assembly strip 3 is connected to the rear side wall of the air box 1, the positioning rods 107 are inserted into the corresponding positioning holes 304. Thus, the positioning rods 107 will perform preliminary positioning of the I-shaped assembly strip 3, thereby ensuring that the I-shaped assembly strip 3 will not shift during installation and ensuring the stability of the installation process.

[0030] Furthermore, rotating blocks 302 are fixed to the upper and lower parts of the end face of the I-shaped assembly strip 3. The upper and lower ends of the shielding plate 306 are fixed with rotating rods 307 that are rotatably connected to the rotating blocks 302. The rotating rods 307 are used in conjunction with the rotating blocks 302 through a torsion spring. When it is necessary to pass the bolt through the locking hole 301, the shielding plate 306 is controlled to rotate. Thus, the shielding plate 306 controls the rotating rods 307 to rotate in the rotating blocks 302, and compresses the torsion spring connected to the two. This ensures that after the shielding plate 306 is released, the torsion spring will automatically push the rotating rods 307 to reset and control the shielding plate 306 to close the I-shaped assembly strip 3 again, ensuring the stable fit between the shielding plate 306 and the I-shaped assembly strip 3.

[0031] Example 2

[0032] Please see Figure 2 and Figure 3 Based on Example 1, the sealing pressure between the sealing plate 2 and the sealing gasket 105 is increased by assembling the sealing plate 2 and the assembly rod 106, thereby improving the sealing performance between the two.

[0033] Specifically, mounting rods 106 are fixed at the four opposite corners inside the air box 1. The four corners of the sealing plate 2 are screwed to the mounting rods 106 by bolts. A sealing gasket 105 is fixed on the inner wall of the air box 1 in a ring shape along the inner side, and the sealing gasket 105 abuts against the inner wall of the sealing plate 2.

[0034] The operation process of this embodiment is as follows: the sealing plate 2 is installed on the air box 1, so that the sealing plate 2 is in contact with the sealing gasket 105, and the screw holes at the four opposite corners of the sealing plate are aligned with the position of the assembly rod 106. The bolts are passed through the screw holes and threadedly connected to the assembly rod 106, thereby increasing the compressive force between the sealing plate 2 and the sealing gasket 105 and improving the sealing performance between them.

[0035] Example 3

[0036] Please see Figure 2 , Figure 3 and Figure 4 Based on Example 1, the gap between the conical ring plate 201 and the connecting cylinder 101 is sealed by the sealing ring 102 to ensure the sealing performance between the two.

[0037] Specifically, a connecting cylinder 101 is fixed in the middle of the rear side wall of the air box 1, and a concave conical ring plate 201 is fixed in the side wall of the sealing plate 2. The conical ring plate 201 abuts against the connecting cylinder 101. A sealing ring 102 that abuts against the conical ring plate 201 is sleeved on the surface of the connecting cylinder 101. An opening 203 is opened on the side wall of the conical ring plate 201 at the position corresponding to the connecting cylinder 101. A screw 303 passing through the connecting cylinder 101 and the opening 203 is fixed on the front end face of the I-shaped assembly strip 3. A locking nut 305 is screwed on the screw 303 in front of the conical ring plate 201.

[0038] The operation process of this embodiment is as follows: After the sealing plate 2 is installed at the front port position of the air box 1, the conical ring plate 201 on the side wall of the sealing plate 2 will directly abut against the end face of the connecting cylinder 101 and compress the sealing ring 102, thereby sealing the gap between the conical ring plate 201 and the connecting cylinder 101 and improving the sealing performance between the two. At the same time, through the assembly and use of the locking nut 305 and the screw 303, the I-shaped assembly strip 3 can be installed on the air box 1.

[0039] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0040] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An expansion tank for a gas-fired wall-hung boiler, comprising a gas tank (1); characterized in that: A sealing plate (2) is provided at the opening position at the front end of the air box (1). A water storage shell (4) is fixed on the surface of the sealing plate (2). A strip-shaped opening (103) communicating with the inside of the water storage shell (4) is provided on all four sides of the air box (1). An expansion film (104) is fixed inside the strip-shaped opening (103). An I-shaped assembly strip (3) is provided on the rear side wall outside the air box (1). Locking holes (301) are provided at the ends of the I-shaped assembly strip (3) that extend beyond the left and right sides of the water storage shell (4). A shielding plate (306) is provided on the end face of the I-shaped assembly strip (3) on the left and right sides.

2. The expansion tank for a gas-fired wall-hung boiler according to claim 1, characterized in that, Assembly rods (106) are fixed at the four opposite corners inside the air box (1), and the four corners of the sealing plate (2) are screwed to the assembly rods (106) by bolts.

3. An expansion tank for a gas-fired wall-hung boiler according to claim 2, characterized in that, The inner wall of the air box (1) is fixed with a sealing gasket (105) arranged in a ring along the inner side, and the sealing gasket (105) abuts against the inner wall of the sealing plate (2).

4. The expansion tank for a gas-fired wall-hung boiler according to claim 1, characterized in that, The bottom of the water storage shell (4) is fixed with a pipe (401) that communicates with its interior, and the front side wall of the sealing plate (2) is fixed with an air filling pipe (202) that communicates with the interior of the air box (1).

5. An expansion tank for a gas-fired wall-hung boiler according to claim 1, characterized in that, A connecting cylinder (101) is fixed in the middle of the rear side wall of the air box (1), and a concave conical ring plate (201) is fixed in the side wall of the sealing plate (2), and the conical ring plate (201) abuts against the connecting cylinder (101). A sealing ring (102) that abuts against the conical ring plate (201) is sleeved on the surface of the connecting cylinder (101), and an opening (203) is opened on the side wall of the conical ring plate (201) at the position corresponding to the connecting cylinder (101).

6. An expansion tank for a gas-fired wall-hung boiler according to claim 5, characterized in that, The front end face of the I-shaped assembly strip (3) is fixed with a screw (303) that passes through the connecting cylinder (101) and the through-hole (203), and a locking nut (305) is screwed on the screw (303) in front of the conical ring plate (201).

7. An expansion tank for a gas-fired wall-hung boiler according to claim 6, characterized in that, Positioning ports (304) are provided on the side walls of the I-shaped assembly strip (3) located above and below the connecting cylinder (101), and two positioning rods (107) are fixed on the rear side wall of the air box (1), which are respectively inserted into the positioning ports (304).

8. An expansion tank for a gas-fired wall-hung boiler according to claim 1, characterized in that, The upper and lower parts of the end face of the I-shaped assembly strip (3) are fixed with rotating blocks (302), and the upper and lower ends of the shielding plate (306) are fixed with rotating rods (307) that are rotatably connected to the rotating blocks (302). The rotating rods (307) are used in conjunction with the rotating blocks (302) through torsion springs.

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